Tank 1.8 is permanently mounted with RTV silicone to your own stock Harley fuel door cover then the included, two-sided challenge coin is firmly (but not permanently) mounted to Tank 1.8 with a small amount of the same RTV silicone (not included)

You can also remove the coin by popping it out the side slot, and remount a new coin, to get a new personalized look

This will not rattle off your fuel door cover if you follow Motordog69s instructions

Mount a coin, ride with pride, pop coin-out, re-mount a new coin, get a new personalized look

Note: One side of the challenge coin includes three lines suitable for engraving

br>History of the Challenge Coin During World War I, American volunteers from all parts of the country filled the newly formed flying squadrons. Some where wealthy scions attending colleges such as Yale and Harvard who quit in mid-term to join the war. In one squadron, a wealthy lieutenant ordered medallions struck in solid bronze and presented them to his unit. One young pilot placed the medallion in a small leather pouch that he wore around his neck.

Shortly after acquiring the medallions, the pilots aircraft was severely damaged by ground fire. He was forced to land behind enemy lines and was immediately captured by a German patrol. In order to discourage his escape, the German took all of his personal identification except for the small leather pouch around his neck. In the meantime, he was taken to a small French town near the front. Taking advantage of a bombardment that night, he escaped. However, he was without personal identification.

He succeeded in avoiding German patrols by donning civilian attire and reached the front lines. With great difficulty, he crossed no-mans land. Eventually, he stumbled onto a French outpost. Unfortunately, saboteurs had plagued the French in that sector. They sometimes masqueraded as civilians and work civilian clothes. Not recognizing the young pilots American accent, the French thought him to be a saboteur and made ready to execute him. He had no identification to prove his allegiance, but he did have his leather pouch containing the medallion. He showed the medallion to his would-be executioners and one of his French captors recognized the squadron insignia on the medallion. They delayed his execution long enough for him to confirm his identity. Instead of shooting him they gave him a bottle of wine.

Back at his squadron, it became tradition to ensure that all members carried their medallion or coin at all times. This was accomplished in the following manners - a challenger would ask to see the medallion. If the challenged could no produce a medallion, they were required to buy a drink of choice for the member who challenged them. If the challenged member produced a medallion, then the challenging member was required to pay for the drink. This tradition continued on throughout the war and for many years after the war while surviving members of the squadron were still alive.